/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.truffle.dsl.processor.ast;

import javax.lang.model.type.*;

public class CodeImport implements Comparable<CodeImport> {

    private final TypeMirror importType;
    private final String importString;
    private final boolean staticImport;

    public CodeImport(TypeMirror importedType, String importString, boolean staticImport) {
        this.importType = importedType;
        this.importString = importString;
        this.staticImport = staticImport;
    }

    public TypeMirror getImportType() {
        return importType;
    }

    public boolean isStaticImport() {
        return staticImport;
    }

    public String getImportString() {
        return importString;
    }

    @Override
    public int compareTo(CodeImport o) {
        if (staticImport && !o.staticImport) {
            return 1;
        } else if (!staticImport && o.staticImport) {
            return -1;
        } else {
            return importString.compareTo(o.getImportString());
        }
    }

    public <P> void accept(CodeElementScanner<?, P> s, P p) {
        s.visitImport(this, p);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((importString == null) ? 0 : importString.hashCode());
        result = prime * result + (staticImport ? 1231 : 1237);
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        CodeImport other = (CodeImport) obj;
        if (importString == null) {
            if (other.importString != null) {
                return false;
            }
        } else if (!importString.equals(other.importString)) {
            return false;
        }
        if (staticImport != other.staticImport) {
            return false;
        }
        return true;
    }

}
